{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "potential therapeutic event", "arguments": ["Treatment.Route", "Subject.Race", "Subject", "Effect", "Treatment.Dosage", "Subject.Age", "Treatment.Disorder", "Treatment.Duration", "Subject.Population", "Treatment.Drug", "Subject.Gender", "Treatment", "Combination.Drug", "Treatment.Time_elapsed", "Subject.Disorder"]}], "input": "Only after three subsequent episodes of severe, symptomatic thrombocytopenia over the next four weeks did he say, upon repeat questioning, that he had continued to take quinine for night leg cramps."}
{"potential therapeutic event": []}